John mccloskey



(No Model.)

J. MGCLOSKBY.

APPARATUS FORMAKING PLUMBERS TRAPS. No. 327,292. Patented Sept. 29,1885.

PATENT OEEIcEo JOHN MCCLOSKEY, OF NEW YORK, N. Y.

APPARATUS FOR MAKING PLUMBERS TRAPS.

SPECIFICATION forming part of Letters Patent No. 327,292, datedSeptember 29, 1885. Application filed December 16, 1879.

To all whom, it may concern.-

Beit known that I, JOHN McCLosKEY, of the city, county, and State of NewYork, have invented certain Improvements in Means for ManufacturingPlumbers Traps, of which the following is a specification.

This invention relates to that class of an apparatus designed for themanufacture of traps of soft metal; and its object is to provide for thebending of the traps in the requisite shape by power applied externallyto the die to give a curved form to the issuing material.

A suitable cylinder or reservoir for lead or soft metal is constructedwith an annular die, through which the. metal may be forced in tubularshape, and is provided with a ram or plunger actuated by hydraulic orother suitable power to force the soft metal through the annular die inthe tubular form aforesaid. Loosely attached to the core, which formsthe central portion of the die, is a bulb spherical, spheroidal, or ofother appropriate contour, the ofce of which bulb is to support theinner walls of the tube in such amanner as to prevent buckling orwrinkling of the metal when the tube is bent as the latter issues fromthe die. Fitted externally upon and around the die is an annular collar,upon which is provided a curved shoulder, over which the pipe isdesigned to be bent, and also provided with a lever constructed with agripping or bending device in such a manner that by operating the saidgripping or bending device the pipe may be grasped between the latterand the shoulder and turned over in one direction to form one of thebends of the trap, which done, the pipe is released'from the grippingdevice, the collar is turned axially onehalfl of a revolution, therebybringing the curved shoulder together with the lever and gripping orbending device at the opposite side of the pipe, in order to repeat thebending operation upon the next adjacent portion of the pipe, and in anopposite direction in order to give the second bend requisite to theformation of the trap, which latter is severed from the issuing pipe bythe use of a saw or other suitable means preparatory to the formation ofanother trap in the same manner.

Figure l is a plan view representing the machine embraced in my saidinvention. Figs. 2 and 3 are side views, and Fig. 4 is verticallongitudinal section of said machine.

A represents the chamber containing the lead or other soft metal ofwhich the traps are to be made, and which may be heated by any suitablemeans to the temperature which may best facilitate the ilow of the leadin a solid, semi-solid, or plastic state. In the upper part of thischamber is provided the annular die a, of which the core is shown at b,the said core being held or steadied in position by any suitablemeans*as, for example, radial supports, as indicated at a in Fig. 4.

At the lower or opposite end of the chamber A is provided a plunger, B,actuated by hydraulic or other suitable means to force the lead or softmetal contained in-the chamber A outward through the annular die a.

C is a bulb or ball of solid metal of spherical, spheroidal, orothersuitable form, and connected by a shank, a2, and pin c with thecore b, as shown in Fig. 4. Other methods of connecting the bulb withthe core may be adopted, if desired.

D is an annular collar fitted around the upper end of the annular die insuch a manner as-to freely rotate around said die, and yet be incapableof being lifted therefrom.

The manner of attaching the collarin place as well as the constructionin detail of the die being matters of judgment merely, and within theknown scope of the arts, need no special description here. Upon one sideof the collar is formed a curved shoulder, A', the curvature of saidshoulder radially from the axis of the collar corresponding to thecurves of the inner sides of the trap to be made, as more fullyindicatedin Figs. 3 and 4.

Pivoted to the collar D, with its axis of motion coincident with theaxis of the curve of the shoulder aforesaid, is a lever, E. On thislever is placed a sliding gripping-jaw, B, actuatedby an elbow-lever, C,pivoted to the lever E, as shown at fin Fig. l.

It is to be remarked that the shoulder A, While having the radialcurvature hereinbefore described, is made concave transversely, as morefully shown in Fig. l, this transverse contour being semicircular tocorrespond with one-half of the circumference ofthe pipe formed from themetal issuing through the die a. rIhe outermost end of the gripping-jawB is made concave in like manner, as also represented in Fig. l.

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In the operation of the machine, the lever E l is broughtto a horizontalposition, as represented in Figs. l and 2. The plunger Bbeing set inmotion the metal is forced from the chamber A through the die a intubular form. The elbow-lever C is then brought toward the lever E 'tocause theissuing pipe to be gripped with more or less snugness betweenthe gripping-jaw B and the shoulder A, whereupon the lever is turnedover the shoulder with a rapidity of movement proportioned to therapidity with which the metal issues through or from the die, therebycausing the material, as it issues in tubular form from the die, to becurved around the shoulder aforesaid, thus forming one of the bends ofthe trap, as indicated in Fig. 4. When this is done, the elbow-lever ismanipulated to relieve the pipe from the grip of the jaw B. The lever Eis reversed to bring the gripping-jaw B clear of the pipe or tubularmaterial. The continued issue in an upward direction of the materialcarries the `just-formed bend clear of theshoulder A and ,the lever E,together with the gripping-janT B, and the collar D with its shoulder Ais turned axially around one-half of a revolution to bring the saidparts to the opposite side of the tube issuing from the die, and theoperation aforesaid is repeated, the result being to give asecond turnto the tube, but in a direction opposite to the first, so as to form thesecond bend of the trap, as represented in Fig. 3. This done,andasufticient portion of the metal having been allowed to issue in anupward direction and in a straight formirom the die, the second arm ofthe trap is thus formed on the latter and the trap is sawed off.

The operations are repeated in succession for any desired number oftraps, it being understood that the bulb C being Within the pip e as itis bent, as hneinbefore explained, prevents the crushing in of the wallsof the pipe 0r their buckling or Wrinkling, which would otherwise belikely to occur from the stress on the tubular material.

If for any reason it is desired that the bends be in planes at an angleto each other, instead of directly opposite each other, as described,the lever E and collar D are turned the proper proportion of arevolution, and the apparatus is manipulated in the same manner as whenthe bends are formed directly opposite each other.

It is of course to be understood that in making traps With one bend onlythe shoulder A can be stationary in its relation With the die, and thatthe lever carrying the gripping or bending device may in such case beincapable of axial movement around the die, it being only necessary thatsaid lever with its gripping or bending device should be in properrelation with the shoulder of the die and the bulb.

It is furthermoreto be remarked that, in

case the apparatus is to be constructed for use in making traps in whichthe bends are in planes at an angle to each other, the bulb may beconnected with the core by a universal joint.

Vhat I claim as my invention isl. The combination of an annulardie forsoft metal, a bulb connected to the core thereof, a jaw or shoulderadjacent to said die provided With a rounded arc-shaped face, and abending-lever provided with a jaw having a rounded arc-shaped face,substantially as described.

2. rlhe combination of the bulb C, or its equivalent, with the annulardie c, substantially as and for the purpose herein set forth. 3. Thecombination, with an annular die,

c, of a gripping or bending device for bending the metal simultaneouslywith the operation of the die and a shoulder or support for givingdefinite curvature to the tubular metal as bent by the bending orgripping device, all

substantially as and for the purpose herein set forth. v

4. The combination of a movable shoulder, A', a gripping or bendingdevice, B', and an annular die, a., whereby the operation of forming thedifferent curves of an S or similar trap is caused to proceedsimultaneously with the ejectment of the soft metal in tubular form fromthe die, all substantially as and for the purpose herein set forth.

5. The combination of the annular die a, the rotatable collar D, havingthe shoulder A, and a gripping or bending device for bending the tubularmaterial over said shoulder as it issues from said die, allsubstantially as and for the purpose herein set forth.

6. The combination of the lever E, carrying the sliding grippingjaw B',the collar D, provided with the curved shoulder A', the annular die c,the chamber A, and a plunger, B, all substantially as and for thepurpose herein set forth'.

7. The combination of an annular die for soft metal, a bulb connected tothe core thereof, a jaw or shoulder adjacent to said die provided With arounded arc-shaped face, and a bending-lever provided With a movable jawhaving a rounded arc-shaped face, substantially as described.

8. The combination of an annular die for soft metal, a bulb connected tothe core thereof, a jaw or shoulder adjacent to said die provided With arounded arc-shaped face, a bending-lever provided With a movable jawhaving a rounded arc-shaped face, the shank of said movable jaw havingan inclined slot, an elbow-lever pivoted to said bending-lever andprovided with a pin which engages said slot, substantially as described.

JOHN MGCLOSKEY.

Witnesses:

H. F. PARKER, GHAs. H. DoXAfr.

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